Return-Path

This is the address that should be used when replying to an email. It is frequently the same as the "From:" address, but just as often may be different. Note: some mail programs and/or individuals will use the "From:" address when sending a reply or bounce instead of the "Return-Path:" address.

Spammer have made it a common practice to use forged "Return-Path:" and "From:" addresses to protect themselves from receiving bounces from the mail that they send. One major problem with this is that the address used is often times a valid e-mail address. The ower of this forged address, AKA an Innocent Bystander may start receiving thousands of bounces in a single day cause by a single spam run that just happened to use use their address as a forged Return-Path address.

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CategorySpamCopGlossaryWikiR
CategoryWhyAmIBlocked

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